sauc·y (sô?s?)adj. sauc·i·er, sauc·i·est 1. Impertinent or disrespectful, especially in a playful or lively way: a saucy servant; a saucy smile.2. Attractive or stylish, especially in being sexually alluring: a saucy dress.3. Having the consistency of or covered with sauce: saucy meatballs.sau?ci·ly adv.sau?ci·ness n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.